Combining Data Sets

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Combining Data Sets

Steve Jones - SSC Editor

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Points: 734418
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January 30, 2018 at 9:31 pm

#77498

Comments posted to this topic are about the item Combining Data Sets

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Stewart "Arturius" Campbell SSC Guru Points: 72485 More actions · Answer 1

Learned something new, thanks Steve

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HappyGeek SSCoach Points: 18726 More actions · Answer 2

Good question, something new learned, thanks Steve.

...

morlindk SSCrazy Points: 2294 More actions · Answer 3

... except given code doesn't run when R is case sensitive.

Kaye Cahs SSCarpal Tunnel Points: 4135 More actions · Answer 4

This site seems to say that combining vectors with the function c (option 1) is also correct.
Did I misinterpret it?

Steve Jones - SSC Editor SSC Guru Points: 734418 More actions · Answer 5

morlindk - Wednesday, January 31, 2018 5:52 AM
... except given code doesn't run when R is case sensitive.

Apologies, case fixed. That's what I get for typing in answers.

Steve Jones - SSC Editor SSC Guru Points: 734418 More actions · Answer 6

Kaye Cahs - Wednesday, January 31, 2018 7:09 AM
This site seems to say that combining vectors with the function c (option 1) is also correct.
Did I misinterpret it?

You misinterpreted the question. I want one vector with three elements. The merge() won't do that. I get a data set, not a vector.

c() does give me a vector, but with six elements. I get:

> c(First.Names, Last.Names)

> [1] "Steve"  "Andy" "Brian"  "Jones"  "Warren" "Knight"

If I use paste(), I get three elements, combined like this:
> paste(First.Names, Last.Names)

>

[1] "Steve Jones"  "Andy Warren"  "Brian Knight"

BillLudlow SSCertifiable Points: 6553 More actions · Answer 7

I guessed that would be the case. Not very up to speed on R

Kaye Cahs SSCarpal Tunnel Points: 4135 More actions · Answer 8

Steve Jones - SSC Editor - Wednesday, January 31, 2018 9:56 AM
Kaye Cahs - Wednesday, January 31, 2018 7:09 AM
This site seems to say that combining vectors with the function c (option 1) is also correct.
Did I misinterpret it?
You misinterpreted the question. I want one vector with three elements. The merge() won't do that. I get a data set, not a vector.
c() does give me a vector, but with six elements. I get:
> c(First.Names, Last.Names)

> [1] "Steve"  "Andy" "Brian"  "Jones"  "Warren" "Knight"
If I use paste(), I get three elements, combined like this:
> paste(First.Names, Last.Names)
>
[1] "Steve Jones"  "Andy Warren"  "Brian Knight"

Thanks for pointing out my error, Steve.
I promise to read the questions more carefully in the future. Well, at least I promise to try to read the questions more carefully. :satisfied: